We know the feeling of staring at a controller and needing Aircon Remote Control Symbols Explained (With Pictures) to understand what those tiny icons actually do.
Most homeowners only use the basic power and temperature controls. Our team at Billy Aircon, founded in 2003 and now 26 members strong, has seen how ignoring these extra features wastes electricity.
Modern remotes from Daikin, Mitsubishi, and Panasonic pack hidden functions engineered for optimal efficiency. This guide serves as your definitive manual, helping you discover practical ways to lower your monthly bills.
Mode Symbols: Aircon Remote Control Symbols Explained (With Pictures)
The mode button cycles through the operating functions of your unit. Each function is represented by a distinct graphic on your digital display.
Snowflake, Cooling Mode
We strongly recommend using the cooling mode for daily comfort in Singapore. The snowflake symbol activates this function, allowing your compressor to reach your set temperature.
The National Environment Agency (NEA) launched the “Go 25” campaign in May 2025 to promote sustainable cooling. Setting your target to 25°C can save you up to 12% in energy costs per degree raised from 23°C.
Our technicians find this is the best default setting for local homes. You can stay perfectly comfortable while keeping your SP Group electricity bills in check.
Water Droplet, Dry Mode
You should switch to dry mode on days when the room feels sticky but not overly hot. The water droplet symbol prioritises dehumidification over aggressive cooling.
Singapore experiences an average relative humidity of around 84% throughout the year. High moisture levels make your skin feel much warmer than the actual room temperature.
We suggest using this setting during the rainy monsoon seasons.
Benefits of Dry Mode:
- Reduces indoor humidity to comfortable levels.
- Lowers compressor workload.
- Conserves more energy than standard cooling.
- Prevents mould growth on walls and furniture.
Sun, Heating Mode
We advise ignoring the sun symbol completely in our tropical climate. This heating mode exists because brands like LG and Midea manufacture global remotes for countries with harsh winters.
Your system will just blow warm air if you accidentally activate it. Switch back to cooling immediately to avoid wasting power.
Fan Symbol, Fan Only Mode
The fan blade icon circulates room air without turning on the outdoor compressor. No active cooling or dehumidification happens during this process.
We always advise running the fan only mode for 30 minutes before turning off your unit. This simple habit dries out the indoor evaporator coil.
Pro Tip: Running the fan mode prevents sour odours and nasty mould from developing inside your unit over time.
Triangle/Arrows, Auto Mode
An “A” or triangle symbol hands complete control over to the unit’s internal thermostat. The system automatically switches between cooling, dry, and fan functions based on room conditions.
Many users find this frustrating because the target temperature might fluctuate.
We prefer manual control to ensure consistent comfort across different rooms.
Fan Speed Symbols
Fan speed controls how fast the indoor blower operates. More bars or a larger fan icon means higher air velocity.
Low Fan (1 Bar)
A single bar indicates the lowest fan speed setting. Air flows out very gently, keeping the room quiet.
This speed is perfect for reading or keeping a room stable once it reaches your desired temperature.
Medium Fan (2 Bars)
Two bars provide a balanced airflow that suits most daytime activities. The noise level remains manageable while cooling the space efficiently.
We frequently use this setting in our own offices to maintain a comfortable working environment.
Fact: A medium fan speed balances optimal cooling performance with acceptable acoustics for focused work.
High Fan (3 Bars)
Three bars push the maximum volume of air into your room. The cooling process happens rapidly, but the rushing air creates noticeable noise.
You should activate high speed only when returning to a sweltering apartment.
Auto Fan
An “A” next to the fan icon lets the internal sensors manage the blower speed. A large temperature difference triggers the highest speed automatically.
We consider this the smartest choice for modern inverter models. The system dials down the speed as the room cools, saving energy without manual adjustments.
Turbo / Powerful / Jet
A person running or a “P” icon activates the maximum capacity of your compressor and fan. The room cools down incredibly fast for a 15 to 30-minute burst.
We warn against leaving this feature running for extended periods. Your SP Group bill will spike significantly because the system consumes maximum wattage.
Pro Tip: Use the powerful mode just long enough to break the heat when you first get home, then switch to auto fan for sustained efficiency.
Quiet / Silent
A “Q” or a sleeping person icon drops the fan speed below the standard low setting. Models like the Mitsubishi Starmex can operate at a whisper-quiet 19 decibels in this mode.
You will barely hear the unit running. Combine this with sleep mode to guarantee an uninterrupted night of rest.
Airflow Direction Symbols
Swing, Up/Down Arrows
Vertical arrows or a curved line control the horizontal louvres on your indoor unit. Pressing the button once makes the flaps move continuously up and down.
We suggest pressing it a second time to lock the louvres at a specific angle. Pointing the airflow horizontally toward the ceiling is the smartest strategy.
Cold air sinks naturally, so aiming high allows it to mix evenly as it falls.
Swing, Left/Right
Premium units often feature motorised vertical louvres for side-to-side air distribution. This sweeps the cold breeze across the entire width of your living room.
Standard HDB installations usually require you to adjust these inner flaps by hand.
| Airflow Direction | Best Used For | Cooling Efficiency |
|---|---|---|
| Horizontal / Upward | General room cooling | Excellent (Cold air sinks evenly) |
| Directly Downward | Quick spot cooling | Poor (Air pools at the floor) |
| Continuous Swing | Clearing hot spots | Good (Distributes air widely) |
Timer Symbols
Clock, Timer On/Off
A small clock icon manages your automated scheduling features. You can program the system to turn on right before you finish your evening commute.
We find the “Timer Off” function incredibly useful for cutting overnight electricity costs. Setting the unit to shut down at 3:00 AM saves roughly four hours of power daily.
How to Set Timers
The exact button sequence varies slightly depending on your specific brand.
We recommend following these three basic steps for most major models.
- Step 1: Press the dedicated Timer button on your remote.
- Step 2: Use the plus and minus keys to adjust the desired time.
- Step 3: Press Set or OK to lock in your schedule.
Some remotes ask for a countdown duration, while others require a specific clock time. Check your user manual to confirm which logic your controller uses.
Sleep and Comfort Symbols
Moon / Star, Sleep Mode
A moon or star graphic engages a specialised overnight algorithm. The fan speed drops to the lowest setting for maximum silence.
The system will then gradually raise the room temperature by 1 to 2 degrees over a few hours. Your core body heat drops during deep sleep, meaning you require less aggressive cooling.
We have seen data showing this gradual adjustment reduces cooling costs by up to 30%. You can find more strategies on our aircon servicing page to optimise your setup for local weather conditions. Check our servicing prices for maintenance packages that keep your unit running efficiently.
i-Feel / Follow Me
Certain Daikin and Midea remotes house a tiny, built-in temperature sensor. A person icon or the phrase “i-Feel” activates this localised tracking feature.
We love this function because ceiling sensors often read warmer than the actual seating area. The remote tells the compressor to cool the exact spot where you are resting.
You must leave the remote on a visible table for the infrared signal to reach the main unit.
Health / Ion / Plasma
A leaf, a plus sign, or the word “ION” activates the onboard purification technology. Manufacturers like Toshiba and Sharp use different methods to tackle airborne particles.
- Ioniser: Releases negative ions to weigh down floating dust.
- Plasma Filter: Uses a high-voltage electrical charge to trap microscopic allergens.
- UV Sterilisation: Emits UV-C light to neutralise bacteria inside the chassis.
We remind our customers that these extras cannot replace a clean primary filter. Regular washing is still mandatory for healthy air quality.
Other Common Symbols
Light / Display
A lightbulb icon toggles the bright LED numbers on the indoor unit. Many light sleepers find the glowing temperature readout highly distracting in a dark bedroom.
We suggest turning this off to create a better environment for rest.
Economy / Eco
An “ECO” label or a green leaf restricts the compressor from running at maximum capacity. Mitsubishi’s “Econo Cool” function adjusts the target temperature slightly while swinging the louvres to maintain comfort.
You will use significantly less electricity, though the room takes longer to chill.
We deploy this setting for rooms that are already shaded or relatively cool.
Benefits of Eco Mode:
- Limits maximum compressor output.
- Reduces overall electricity consumption.
- Maintains gentle temperature control.
Self-Clean / Clean
Advanced Panasonic and LG models feature an automated cleaning cycle triggered by this specific button. The evaporator coil freezes built-up moisture, then rapidly defrosts to flush away settled dust.
The entire process typically concludes within 20 to 30 minutes.
We advise running this cycle weekly to maintain efficiency between your scheduled professional servicing appointments. The self-clean cycle only handles surface moisture though - if the unit already smells musty when it starts up, the coil needs a proper aircon chemical wash rather than more button presses.
Reset
A tiny recessed hole hides the factory reset switch. You will need a paperclip or a SIM card tool to press it.
We use this hard reset when a controller freezes or displays corrupted, scrambled digits.
Symbols You Can Ignore Locally
A few buttons have absolutely no practical use in our tropical climate. Global manufacturing means you get features designed for snow, even in the tropics.
- Heating mode (Sun icon): Completely unnecessary for our weather.
- Defrost: Designed to melt ice off the outdoor condenser in sub-zero climates.
- Floor heating: Used for specialised radiant systems found in colder countries.
When Your Remote Fails to Respond
A dead controller leaves you stuck in a hot, uncomfortable room. Fortunately, most communication issues are easy to fix without professional help.
We recommend checking these common fail points before buying a replacement.
- Swap the batteries: Dead batteries cause 90% of all controller failures.
- Clear the line of sight: Move furniture blocking the receiver on the indoor unit.
- Wipe the IR transmitter: Clean the dark plastic bulb at the top of your controller to remove greasy fingerprints.
- Use the manual override: Lift the indoor unit’s front plastic cover to find the emergency auto button.
A completely broken remote is cheap to replace at electronics shops like Challenger. Universal controllers cost around $10 to $20 and sync easily with Daikin, LG, or Samsung models.
Make the Most of Your Equipment
Most property owners barely scratch the surface of what their cooling systems can do.
We challenge you to test the dry mode during the next humid afternoon. Try bumping the temperature to 25°C with the auto fan engaged, and monitor how your comfort holds up.
Small daily habits add up to massive savings over a full calendar year. You have reached the end of our guide on Aircon Remote Control Symbols Explained (With Pictures), and you now have the knowledge to tweak those settings for better sleep and lower utility bills.
Aircon not responding to the remote, or need help with your settings? You can easily reach out and WhatsApp Billy Aircon at +65 9187 4498 for fast, friendly advice.
